Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2008-05-26
2011-11-01
Huynh, Hai (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C701S110000, C123S090110, C123S090150, C123S339150
Reexamination Certificate
active
08050850
ABSTRACT:
An internal combustion engine includes a valve timing change mechanism that changes the phase of an intake cam, and a lift amount change mechanism that changes lift amount by causing displacement of a control shaft. An electronic control unit performs a coordinated control in which the lift amount change mechanism is operated such that the position of the control shaft that is detected by a position detection sensor becomes the target position, and the valve timing change mechanism is operated according to a control state of the lift amount change mechanism. When a discrepancy between the actual position of the control shaft and the detected position thereof is estimated to be large, coordinated control is forbidden and the valve timing change mechanism is operated based on engine load.
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Fuwa Naohide
Ito Tokiji
Kanemoto Hiroyuki
Tamada Seiko
Huynh Hai
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
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